Republican presidential candidate former, House Speaker Newt Gingrich walks to his bus after a rally for home ownership, Thursday, Jan. 12, 2012, at the State Capitol in Columbia, S.C. (AP Photo/Matt Rourke)

COLUMBIA, S.C. (AP) — Under pressure from some in his own party, Republican presidential candidate Newt Gingrich on Thursday tempered his public attacks on front-runner Mitt Romney while defending his right to question the former Massachusetts governor’s business record.

“If you ask about his career, it’s because he’s running for president,” Gingrich said of the questions he and his allies have raised about Romney’s tenure as head of a private equity fund.

“I think he owes the country a much more detailed answer about what his career was like, what decisions they made, because we’re looking at the judgment, the Login to read more